%% dx = (0.125,0.125)
solution = [
1 1.13315 1.28403 1.45499 1.64872 1.86825 2.117 2.39888 2.71828 
1.13299 1.28355 1.45426 1.64775 1.867 2.11544 2.39692 2.7158 3.07693 
1.28096 1.4511 1.64399 1.86262 2.11037 2.39109 2.70914 3.06942 3.47752 
1.44266 1.63426 1.85145 2.09762 2.37658 2.69266 3.05076 3.45643 3.91598 
1.61556 1.83011 2.07333 2.349 2.66139 3.01535 3.41635 3.87063 4.38524 
1.79571 2.0342 2.30458 2.61104 2.95833 3.35184 3.79764 4.30263 4.87464 
1.97777 2.24049 2.53838 2.87603 3.25867 3.69223 4.18342 4.7398 5.36991 
2.15506 2.44149 2.76628 3.13441 3.55158 4.02427 4.55983 5.16651 5.85349 
2.31978 2.62865 2.97865 3.37526 3.82467 4.33391 4.91097 5.56486 6.30581 
];
exact = [
1 1.13315 1.28403 1.45499 1.64872 1.86825 2.117 2.39888 2.71828 
1.13278 1.28361 1.45452 1.64819 1.86764 2.11631 2.3981 2.7174 3.07922 
1.2807 1.45122 1.64445 1.8634 2.11151 2.39266 2.71123 3.07223 3.48129 
1.44235 1.63439 1.85201 2.0986 2.37803 2.69466 3.05345 3.46001 3.92071 
1.61515 1.8302 2.07389 2.35002 2.66293 3.01749 3.41926 3.87453 4.39042 
1.79517 2.03419 2.30504 2.61195 2.95973 3.35381 3.80037 4.30638 4.87977 
1.97712 2.24036 2.53867 2.87669 3.25971 3.69374 4.18555 4.74285 5.37436 
2.15447 2.44133 2.76639 3.13473 3.55212 4.02507 4.56101 5.1683 5.85645 
2.31978 2.62865 2.97865 3.37526 3.82467 4.33391 4.91097 5.56486 6.30581 
];
err = [
-2.39808e-14 1.02141e-14 -1.68754e-14 1.11466e-13 -2.24265e-14 6.59472e-14 -4.08562e-13 -1.5099e-14 -4.75175e-14 
0.000205638 -5.88468e-05 -0.000256517 -0.00043938 -0.000635585 -0.000869682 -0.00117328 -0.001602 -0.00228594 
0.000260506 -0.000118421 -0.000452952 -0.000780562 -0.00113712 -0.0015609 -0.00209797 -0.00280888 -0.00377496 
0.000312496 -0.000138873 -0.00056167 -0.000985551 -0.00144991 -0.00200114 -0.00269277 -0.00358377 -0.00472755 
0.000410687 -9.3588e-05 -0.000562438 -0.00102896 -0.00153863 -0.00214549 -0.00291203 -0.00390624 -0.00518692 
0.000547868 1.00856e-05 -0.000459227 -0.000908781 -0.00139365 -0.00197547 -0.00272835 -0.00374363 -0.00512201 
0.000659614 0.00012307 -0.000287638 -0.000653415 -0.00103854 -0.00150617 -0.00213695 -0.00305327 -0.00444786 
0.000594665 0.000153735 -0.000111668 -0.000322823 -0.000537604 -0.000801964 -0.00117871 -0.00179251 -0.00295684 
2.35367e-14 -4.17444e-14 2.70894e-14 -6.88338e-14 6.35048e-14 3.64153e-14 5.32907e-14 -3.55271e-14 0 
];
